diff --git a/changelog.d/update-policyengine-us-1.634.4.changed.md b/changelog.d/update-policyengine-us-1.634.4.changed.md
new file mode 100644
index 00000000..a01d076c
--- /dev/null
+++ b/changelog.d/update-policyengine-us-1.634.4.changed.md
@@ -0,0 +1 @@
+Update PolicyEngine US to 1.634.4.
diff --git a/pyproject.toml b/pyproject.toml
index 8abe8ce5..b5d81140 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "policyengine-ng==0.5.1",
     "policyengine-il==0.1.0",
     "policyengine_uk==2.39.0",
-    "policyengine_us==1.633.2",
+    "policyengine_us==1.634.4",
     "policyengine_core>=3.16.6",
     "policyengine>=0.7.0",
     "pydantic",